The CW released a few clips of the episode
8.03 - "Heartache".

Sam and Dean investigate murders where the victims all received organs from the same donor.

Airs: Wednesday, October 17th, 2012 at 9/8c

The CW has released an official description of the episode, 8.05 – "Blood Brother".
Benny calls Dean for help after being brutally attacked by his own kind.
Written by: Ben Edlund,
Directed by: Guy Norman Bee
Airs: Wednesday, October 31st, 2012.

The CW has released 9 episode stills of
8.04 - "Bitten".
Sam and Dean investigate a bizarre murder in a college town.
Written by: Robbie Thompson,
Directed by: Thomas J. Wright.
Airs: Wednesday October 24th, 2012 at 9/8c.

The CW has released 14 episode stills of
8.03 - "Heartache".
Sam & Dean are on a strange case when they find their killer in a trance mumbling an ancient prayer.
Written by: Brad Buckner & Eugenie Ross-Leming,
Directed by: Jensen Ackles.
Airs: Wednesday October 17th, 2012 at 9/8c.

The CW released a few clips of the episode
8.02 - "What's Up, Tiger Mommy?".

The word of God is up for sale at an auction, Sam & Dean must outbid the king of hell to win the tablet.

Airs: Wednesday, October 10th, 2012 at 9/8c

The CW has released an official description of the episode, 8.04 – "Bitten".
Sam & Dean become unknowing participants in a unique student film.
Written by: Robbie Thompson
Directed by: Thomas J. Wright
Airs: Wednesday, October 24th, 2012.